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Shading warping-resistant polyester material for 3D printing and preparation method thereof

A polyester material and 3D printing technology, applied in the field of 3D printing polyester materials, can solve the problems of poor mechanical properties and heat resistance of 3D printing, achieve good anti-warping and shading properties, good compatibility, and improve the use temperature and the effect of temperature resistance

Active Publication Date: 2019-12-27
诺思贝瑞新材料科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a 3D printed light-shielding and anti-warping polyester material and its preparation method to solve the problems of poor mechanical properties and heat resistance of 3D printing in the prior art

Method used

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  • Shading warping-resistant polyester material for 3D printing and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Put 400 parts of PETG, 100 parts of PCTG, and 20 parts of PCT in a drying oven to dry for 4 hours, so that the moisture content is lower than 0.2%. The drying temperature of PETG and PCTG is 80 ° C, and the drying temperature of PCT is 110 ° C ;Put the dried matrix resin into a high-speed mixer and mix at a low speed for 1-2min at room temperature; add 1 part of diffusing oil and 0.5 part of coupling agent, and mix at a high speed for 5-8min at room temperature; add toughening agent 4 30 parts of montmorillonite, 450 parts of sunscreen, 1 part of main antioxidant, 2 parts of auxiliary antioxidant, 2 parts of lubricant, 0.5 part of anti-UV agent, mix at room temperature for 5-10 minutes, make it fully mixed uniform; the mixed material is added to the twin-screw extruder, and the processing temperature of each zone of the twin-screw extruder is 170-190°C, 220-245°C, 220-245°C, 220-245°C, 220-240°C, 220°C -240°C, 220-240°C, 220-240°C, 220-240°C, 220-240°C, 220-240°C, 230-2...

Embodiment 2

[0030] Put 400 parts of PETG, 100 parts of PCTG, and 40 parts of PCT in a drying oven to dry for 4 hours, so that the moisture content is lower than 0.2%. The drying temperature of PETG and PCTG is 80 ° C, and the drying temperature of PCT is 110 ° C ;Put the dried matrix resin into a high-speed mixer and mix at a low speed for 1-2min at room temperature; add 1 part of diffusing oil and 0.5 part of coupling agent, and mix at a high speed for 5-8min at room temperature; add toughening agent 4 30 parts of montmorillonite, 430 parts of sunscreen, 2 parts of primary antioxidant, 2 parts of auxiliary antioxidant, 2 parts of lubricant, 1 part of anti-UV agent, mix at room temperature for 5-10 minutes, make it fully mixed Uniform; the mixed material is added to the twin-screw extruder, and the processing temperature of each zone of the twin-screw extruder is 170-190°C, 220-245°C, 220-245°C, 220-245°C, 220-240°C, 220°C -240°C, 220-240°C, 220-240°C, 220-240°C, 220-240°C, 220-240°C, 230...

Embodiment 3

[0032]Put 300 parts of PETG, 200 parts of PCTG, and 50 parts of PCT in a drying oven to dry for 4 hours, so that the moisture content is lower than 0.2%. The drying temperature of PETG and PCTG is 80 ° C, and the drying temperature of PCT is 110 ° C ;Put the dried base resin into a high-speed mixer and mix at a low speed for 1-2min at room temperature; add 1 part of diffusing oil and 0.5 part of a coupling agent, and mix at a high speed for 5-8min at room temperature; add toughening agent 6 50 parts of montmorillonite, 400 parts of sunscreen, 1 part of primary antioxidant, 2 parts of auxiliary antioxidant, 2 parts of lubricant, 0.5 part of anti-UV agent, mix at room temperature for 5-10 minutes, make it fully mixed uniform; the mixed material is added to the twin-screw extruder, and the processing temperature of each zone of the twin-screw extruder is 170-190°C, 220-245°C, 220-245°C, 220-245°C, 220-240°C, 220°C -240°C, 220-240°C, 220-240°C, 220-240°C, 220-240°C, 220-240°C, 230...

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Abstract

The invention relates to a shading warping-resistant polyester material for 3D printing and a preparation method thereof. The preparation method comprises the following steps: drying matrix resin in adrying oven; putting the dried matrix resin into a high-speed mixer for stirring and mixing; adding diffusion oil and a coupling agent, and mixing the mixture at a high speed; adding the toughening agent, an inorganic filler, an opacifying agent, an antioxidant, a lubricating agent and an anti-UV agent, and uniformly mixing the mixture; adding the mixed materials into a double-screw extruder forextrusion and granulation to obtain particles; putting the particles into an airflow dryer for drying; and putting the dried particles into a single-screw extruder to extrude a melt, cooling, preparing a wire rod under the traction action of a traction machine, and winding the wire rod to obtain the shading warping-resistant polyester material for 3D printing. The polyester material has good mechanical properties and heat resistance, and has good warping resistance and shading performance.

Description

technical field [0001] The invention relates to the technical field of 3D printing polyester materials, in particular to a light-shielding and warpage-resistant polyester material for 3D printing and a preparation method thereof. Background technique [0002] 3D printing is a production method that does not require molds or machining to complete product manufacturing. With the advantages of short molding cycle and personalized design of 3D printing, it is increasingly used in various industries. . However, the types of printing materials limit the application of 3D printing in various fields. Among them, the application of 3D printing on luminous characters is a typical case. 3D printing luminous characters is a new method of manufacturing luminous characters and promoting lighting by 3D printing. , because 3D printing itself has the advantages of personalized design, timeliness, and convenience. The appearance of 3D printed luminous characters is amazing, and the shape can...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K3/22C08K9/04C08K3/34
CPCC08L67/02C08L2205/035C08L2205/025C08L2201/08C08K2003/2241C08K3/22C08K9/04C08K3/346
Inventor 梁雪娇熊文治曹勇民茅伟华
Owner 诺思贝瑞新材料科技(苏州)有限公司
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